Correct Answer: C

Rationale: The correct answer is C, 'Noticeable.' This word contains an exception to the common spelling rule of dropping the 'e' before adding a suffix starting with a vowel. In this case, the 'e' is retained in 'noticeable' before adding the suffix '-able.' Choices A, B, and D do not involve any spelling rule exceptions. 'Unclear,' 'Memorize,' and 'Grieved' follow standard spelling conventions without any irregularities.

Correct Answer: B

Rationale: The correct answer is B: 'A summary of the argument that clearly reinforces its main points.' In a concluding statement of an argument, it is crucial to provide a concise summary that reinforces the main points presented throughout the argument. Option A is incorrect because introducing new points in the conclusion can confuse the audience and detract from the coherence of the argument. Option C is incorrect as the conclusion should focus on summarizing the main argument rather than delving into other perspectives. Option D is incorrect because while metaphors can be useful in enhancing understanding, they are not essential in the concluding statement of an argument, which should primarily focus on summarizing the key points.

Correct Answer: A

Rationale: The correct transitional words or phrases that indicate contrast are 'Regardless' and 'On the other hand.' 'Regardless' introduces a contrasting idea, while 'On the other hand' explicitly signals a shift in perspective or introduces an opposing viewpoint. 'Furthermore' and 'Moreover' are not used to indicate contrast; instead, they are used to add more information or support to a related point.

Correct Answer: C

Rationale: The correct plural form of 'syllabus' is 'syllabi.' In English, when a word ends in -us, the plural form is often changed to -i. Therefore, 'Syllabi' is the correct plural form. Choice A, 'Syllabus,' is the singular form, not the plural. Choice B, 'Syllaba,' does not follow the standard pluralization rule for words ending in -us. Choice D, 'Syllabis,' is an incorrect plural form that does not follow the standard English pluralization rules.

Correct Answer: B

Rationale: In the sentence, 'capacity' is used to refer to the maximum amount that something can contain or produce, making it a noun. It is not functioning as a verb (choice A), as it is not describing an action. It is not an adverb (choice C) because it is not modifying a verb, adjective, or another adverb. Additionally, it is not a pronoun (choice D) because it is not replacing a noun or noun phrase. Therefore, the correct answer is 'B: Noun.'